GALAXY™ Dimension™ Intrusion Control and Access Control Kit Grade 3. 16 Zones expandable up to 48 with RIO-type outer expanders (4). Supports up to 8 expanders of 2 access readers. 1 RS485 expansion bus. Up to 8 control keypads (3 with proximity reader). Up to 8 Partitions (Groups), 19 Calendars, 100 Users, 64 Links (Macros) and 1000 Events. Integrated RTB telephone communicator, optional TCP / IP module. Metal box with 220VAC power supply, 12VDC 2.5A. Space for 2 batteries. EN50131-6 Grade 3 Environmental class II. MK7 alphanumeric console for the control of GALAXY™ intrusion panels. Backlit LCD screen with two lines. Mebrana keyboard with protective cover. Incorporates buzzer and tamper. EN50131-6 Grade 3 Environmental class II.